Abstract
Analysis of 16 years of monthly records of aphid populations in 130 Florida citrus groves disclosed Aphis spiraecola, A. gossypii and Toxoptera aurantii as the only species commonly attacking citrus. All three species are known to transmit tristeza virus. Populations of each species in the 6 years of highest statewide population were compared for 3 geographical areas within the citrus belt. In West area where spread of tristeza is great, Aphis gossypii was most abundant and dominant. In Central area where tristeza spread is also great A. gossypii was seldom abundant but total aphid population was higher and A. spiraecola was dominant. In East area where tristeza is found occasionally but appears not to be spreading, all 3 species were present but aphid infestations were usually less severe. No direct linear relationship between tristeza spread and numbers of aphids was evident. It is recognized that factors such as abundance of trees acting as virus reservoirs, different strains of virus, and the possibility of aphid strains of greater transmission efficiency may also be involved.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 7
Claim · model-written summary
Aphis spiraecola, A. gossypii and Toxoptera aurantii were the only aphid species commonly attacking citrus.
- Interactor
- Aphis spiraecola
Aphis spiraecolae0pest - Second interactor
- A. gossypii
Aphis gossypiie0pest - Outcome
- species commonly attacking citruse0
- Qualifier
- Toxoptera aurantiie0
CitrusOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Analysis of 16 years of monthly records of aphid populations in 130 Florida citrus groves disclosed Aphis spiraecola, A. gossypii and Toxoptera aurantii as the only species commonly attacking citrus”
Claim · model-written summary
In the West area, where tristeza spread is great, Aphis gossypii was the most abundant and dominant aphid.
- Interactor
- Aphis gossypiiAphis gossypiie1pest
- Outcome
- most abundant and dominante1
- Setting
- West areae1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Analysis of 16 years of monthly records of aphid populations in 130 Florida citrus groves disclosed Aphis spiraecola, A. gossypii and Toxoptera aurantii as the only species commonly attacking citrus”
e1“In West area where spread of tristeza is great, Aphis gossypii was most abundant and dominant”
Claim · model-written summary
In the Central area, total aphid population was higher.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Analysis of 16 years of monthly records of aphid populations in 130 Florida citrus groves disclosed Aphis spiraecola, A. gossypii and Toxoptera aurantii as the only species commonly attacking citrus”
e2“In Central area where tristeza spread is also great A. gossypii was seldom abundant but total aphid population was higher and A. spiraecola was dominant”
Claim · model-written summary
In the Central area, A. gossypii was seldom abundant.
- Interactor
- A. gossypiiAphis gossypiie2pest
- Outcome
- seldom abundante2
- Setting
- Central areae2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Analysis of 16 years of monthly records of aphid populations in 130 Florida citrus groves disclosed Aphis spiraecola, A. gossypii and Toxoptera aurantii as the only species commonly attacking citrus”
e2“In Central area where tristeza spread is also great A. gossypii was seldom abundant but total aphid population was higher and A. spiraecola was dominant”
Claim · model-written summary
In the Central area, A. spiraecola was the dominant aphid.
- Interactor
- A. spiraecolaAphis spiraecolae2pest
- Outcome
- dominante2
- Setting
- Central areae2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Analysis of 16 years of monthly records of aphid populations in 130 Florida citrus groves disclosed Aphis spiraecola, A. gossypii and Toxoptera aurantii as the only species commonly attacking citrus”
e2“In Central area where tristeza spread is also great A. gossypii was seldom abundant but total aphid population was higher and A. spiraecola was dominant”
Claim · model-written summary
In the East area, where tristeza is found occasionally, aphid infestations were usually less severe.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Analysis of 16 years of monthly records of aphid populations in 130 Florida citrus groves disclosed Aphis spiraecola, A. gossypii and Toxoptera aurantii as the only species commonly attacking citrus”
e3“In East area where tristeza is found occasionally but appears not to be spreading, all 3 species were present but aphid infestations were usually less severe”
Claim · model-written summary
No direct linear relationship was evident between tristeza spread and aphid numbers.
- Interactor
- aphide4pest
- Second interactor
- tristezae4pathogen
- Outcome
- numbers of aphidse4
- Direction
- no_changeinferrede4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Analysis of 16 years of monthly records of aphid populations in 130 Florida citrus groves disclosed Aphis spiraecola, A. gossypii and Toxoptera aurantii as the only species commonly attacking citrus”
e4“No direct linear relationship between tristeza spread and numbers of aphids was evident”